package com.cdu.ai_intelligent_teaching_and_training_system.entity;

import lombok.Data;

import javax.validation.constraints.Email;
import javax.validation.constraints.NotBlank;
import javax.validation.constraints.Size;
import java.time.LocalDateTime;

@Data
public class User {
    private Long userId;
    
    @NotBlank(message = "用户名不能为空")
    @Size(min = 3, max = 50, message = "用户名长度必须在3-50个字符之间")
    private String username;
    
    @NotBlank(message = "邮箱不能为空")
    @Email(message = "邮箱格式不正确")
    private String email;
    
    @NotBlank(message = "密码不能为空")
    @Size(min = 6, message = "密码长度不能少于6")
    private String password;
    
    @NotBlank(message = "角色不能为空")
    private String role; // teacher 或 student
    
    private LocalDateTime createdTime;
} 